| Issue | #246 |
| Published | September 1949 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | ? |
| Notes | Indicia title is "Zane Grey's THUNDER MOUNTAIN, No. 246." Code number is Z.G.O.S. #246-499. Copyright 1949 by Zane Grey, Inc. Published by arrangement with The Hawley Publications, Inc., authorized edition. |
| Genre | western |
| Pencils | Morris Gollub (painting) |
| Inks | Morris Gollub (painting) |
| Colors | Morris Gollub (painting) |
| Notes | Pencils, inks, and colors credits for this sequence from Alberto Becattini (May 14, 2007). |
| Synopsis | Facts about freight companies in the Old West. |
| Genre | western; fact |
| Pencils | Till Goodan |
| Inks | Till Goodan |
| Letters | Till Goodan |
| Notes | Inside front cover; black and white. Text and illustrations. |
| Characters | Kalispel Emerson; Sam Emerson; Jake Emerson; Syndey Blair; Cliff Borden; Rand Leavitt (villain) |
| Synopsis | Three brothers find a lode of gold at Thunder Mountain. Before they can get the claim registered, one of the brothers is killed by a claim jumper and the other is beaten and robbed of his ore sample. A boom town rises around the new mine while the youngest brother plots to find a way to force Rand Leavitt, the mine's owner to admit to the murder. |
| Genre | western |
| Script | Zane Grey (original story); ? (comic adaptation) |
| Pencils | Harry L. Parks (H.V.L. Parkhurst) |
| Inks | Harry L. Parks (H.V.L. Parkhurst) |
| Notes | Adapted from the 1932 novel "Thunder Mountain" by Zane Grey. Art identification from Hames Ware (November 9, 2010). |
| Synopsis | Facts about the buckboard wagon. |
| Genre | western; fact |
| Pencils | Till Goodan |
| Inks | Till Goodan |
| Letters | Till Goodan |
| Notes | Inside back cover; black and white. |
| Synopsis | Two mounted cowboys fleeing from a landslide. |
| Genre | western |
| Pencils | Morris Gollub (painting) |
| Inks | Morris Gollub (painting) |
| Colors | Morris Gollub (painting) |
| Notes | Back cover. Same artist as front cover. |