diff --git a/cmd/geth/chaincmd.go b/cmd/geth/chaincmd.go
index db4c72ee6d..0356de8adc 100644
--- a/cmd/geth/chaincmd.go
+++ b/cmd/geth/chaincmd.go
@@ -136,6 +136,7 @@ The export-preimages command export hash preimages to an RLP encoded stream`,
 			utils.FakePoWFlag,
 			utils.TestnetFlag,
 			utils.EllaismFlag,
+			utils.ClassicFlag,
 			utils.RinkebyFlag,
 		},
 		Category: "BLOCKCHAIN COMMANDS",
diff --git a/cmd/geth/consolecmd.go b/cmd/geth/consolecmd.go
index e50b0a87b5..c2b302e40c 100644
--- a/cmd/geth/consolecmd.go
+++ b/cmd/geth/consolecmd.go
@@ -128,6 +128,8 @@ func remoteConsole(ctx *cli.Context) error {
 				path = filepath.Join(path, "rinkeby")
 			} else if ctx.GlobalBool(utils.EllaismFlag.Name) {
 				path = filepath.Join(path, "ellaism")
+			} else if ctx.GlobalBool(utils.ClassicFlag.Name) {
+				path = filepath.Join(path, "classic")
 			}
 		}
 		endpoint = fmt.Sprintf("%s/geth.ipc", path)
diff --git a/cmd/geth/main.go b/cmd/geth/main.go
index 35b2a6b8a3..81ec092160 100644
--- a/cmd/geth/main.go
+++ b/cmd/geth/main.go
@@ -110,6 +110,7 @@ var (
 		utils.DeveloperPeriodFlag,
 		utils.TestnetFlag,
 		utils.EllaismFlag,
+		utils.ClassicFlag,
 		utils.RinkebyFlag,
 		utils.VMEnableDebugFlag,
 		utils.NetworkIdFlag,
diff --git a/cmd/geth/usage.go b/cmd/geth/usage.go
index 9df208967a..bbd9a59309 100644
--- a/cmd/geth/usage.go
+++ b/cmd/geth/usage.go
@@ -74,6 +74,7 @@ var AppHelpFlagGroups = []flagGroup{
 			utils.NetworkIdFlag,
 			utils.TestnetFlag,
 			utils.EllaismFlag,
+			utils.ClassicFlag,
 			utils.RinkebyFlag,
 			utils.SyncModeFlag,
 			utils.GCModeFlag,
diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go
index 5c2ee99585..c1e8c23998 100644
--- a/cmd/utils/flags.go
+++ b/cmd/utils/flags.go
@@ -139,6 +139,10 @@ var (
 		Name:  "ellaism",
 		Usage: "Ellaism network: pre-configured Ellaism mainnet",
 	}
+	ClassicFlag = cli.BoolFlag{
+		Name:  "classic",
+		Usage: "Ethereum Classic network: pre-configured Ethereum Classic mainnet",
+	}
 	RinkebyFlag = cli.BoolFlag{
 		Name:  "rinkeby",
 		Usage: "Rinkeby network: pre-configured proof-of-authority test network",
@@ -549,6 +553,9 @@ func MakeDataDir(ctx *cli.Context) string {
 		if ctx.GlobalBool(EllaismFlag.Name) {
 			return filepath.Join(path, "ellaism")
 		}
+		if ctx.GlobalBool(ClassicFlag.Name) {
+			return filepath.Join(path, "classic")
+		}
 		if ctx.GlobalBool(RinkebyFlag.Name) {
 			return filepath.Join(path, "rinkeby")
 		}
@@ -606,6 +613,8 @@ func setBootstrapNodes(ctx *cli.Context, cfg *p2p.Config) {
 		urls = params.TestnetBootnodes
 	case ctx.GlobalBool(EllaismFlag.Name):
 		urls = params.EllaismBootnodes
+	case ctx.GlobalBool(ClassicFlag.Name):
+		urls = params.ClassicBootnodes
 	case ctx.GlobalBool(RinkebyFlag.Name):
 		urls = params.RinkebyBootnodes
 	case cfg.BootstrapNodes != nil:
@@ -894,6 +903,8 @@ func SetNodeConfig(ctx *cli.Context, cfg *node.Config) {
 		cfg.DataDir = filepath.Join(node.DefaultDataDir(), "testnet")
 	case ctx.GlobalBool(EllaismFlag.Name):
 		cfg.DataDir = filepath.Join(node.DefaultDataDir(), "ellaism")
+	case ctx.GlobalBool(ClassicFlag.Name):
+		cfg.DataDir = filepath.Join(node.DefaultDataDir(), "classic")
 	case ctx.GlobalBool(RinkebyFlag.Name):
 		cfg.DataDir = filepath.Join(node.DefaultDataDir(), "rinkeby")
 	}
@@ -1023,7 +1034,7 @@ func SetShhConfig(ctx *cli.Context, stack *node.Node, cfg *whisper.Config) {
 // SetEthConfig applies eth-related command line flags to the config.
 func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
 	// Avoid conflicting network flags
-	checkExclusive(ctx, DeveloperFlag, TestnetFlag, RinkebyFlag, EllaismFlag)
+	checkExclusive(ctx, DeveloperFlag, TestnetFlag, RinkebyFlag, EllaismFlag, ClassicFlag)
 	checkExclusive(ctx, FastSyncFlag, LightModeFlag, SyncModeFlag)
 	checkExclusive(ctx, LightServFlag, LightModeFlag)
 	checkExclusive(ctx, LightServFlag, SyncModeFlag, "light")
@@ -1094,6 +1105,11 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
 			cfg.NetworkId = 64
 		}
 		cfg.Genesis = core.DefaultEllaismGenesisBlock()
+	case ctx.GlobalBool(ClassicFlag.Name):
+		if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
+			cfg.NetworkId = 1
+		}
+		cfg.Genesis = core.DefaultClassicGenesisBlock()
 	case ctx.GlobalBool(RinkebyFlag.Name):
 		if !ctx.GlobalIsSet(NetworkIdFlag.Name) {
 			cfg.NetworkId = 4
@@ -1221,6 +1237,8 @@ func MakeGenesis(ctx *cli.Context) *core.Genesis {
 		genesis = core.DefaultTestnetGenesisBlock()
 	case ctx.GlobalBool(EllaismFlag.Name):
 		genesis = core.DefaultEllaismGenesisBlock()
+	case ctx.GlobalBool(ClassicFlag.Name):
+		genesis = core.DefaultClassicGenesisBlock()
 	case ctx.GlobalBool(RinkebyFlag.Name):
 		genesis = core.DefaultRinkebyGenesisBlock()
 	case ctx.GlobalBool(DeveloperFlag.Name):
diff --git a/core/genesis.go b/core/genesis.go
index fba4cd084b..138efefddf 100644
--- a/core/genesis.go
+++ b/core/genesis.go
@@ -334,6 +334,18 @@ func DefaultEllaismGenesisBlock() *Genesis {
 	}
 }
 
+// ClassicGenesisBlock returns the Ellaism genesis block.
+func DefaultClassicGenesisBlock() *Genesis {
+	return &Genesis{
+		Config:     params.ClassicChainConfig,
+		Nonce:      66,
+		ExtraData:  hexutil.MustDecode("0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa"),
+		GasLimit:   5000,
+		Difficulty: big.NewInt(17179869184),
+		Alloc:      decodePrealloc(mainnetAllocData),
+	}
+}
+
 // DefaultTestnetGenesisBlock returns the Ropsten network genesis block.
 func DefaultTestnetGenesisBlock() *Genesis {
 	return &Genesis{
diff --git a/params/config.go b/params/config.go
index ba1f343979..3cf3a4a0cc 100644
--- a/params/config.go
+++ b/params/config.go
@@ -64,6 +64,24 @@ var (
 		Ethash:              new(EthashConfig),
 	}
 
+	// ClassicChainConfig is the chain parameters to run a node on the Ellaism main network.
+	ClassicChainConfig = &ChainConfig{
+		ChainId:             big.NewInt(61),
+		HomesteadBlock:      big.NewInt(1150000),
+		DAOForkBlock:        nil,
+		DAOForkSupport:      false,
+		EIP150Block:         big.NewInt(2500000),
+		EIP150Hash:          common.HexToHash("0xca12c63534f565899681965528d536c52cb05b7c48e269c2a6cb77ad864d878a"),
+		EIP155Block:         big.NewInt(3000000),
+		EIP158Block:         nil,
+		ByzantiumBlock:      nil,
+		DisposalBlock:       big.NewInt(5900000),
+		ConstantinopleBlock: nil,
+		ECIP1017EraRounds:   big.NewInt(5000000),
+		EIP160Block:         big.NewInt(3000000),
+		Ethash:              new(EthashConfig),
+	}
+
 	// TestnetChainConfig contains the chain parameters to run a node on the Ropsten test network.
 	TestnetChainConfig = &ChainConfig{
 		ChainId:             big.NewInt(3),