No, the Rocky Mountains do not extend into Nevada. The Rocky Mountain range primarily runs through the western United States, stretching from New Mexico in the south up through Colorado, Utah, Wyoming, Montana, and into Canada. While Nevada does have mountain ranges, such as the Sierra Nevada and the Ruby Mountains, it is not home to any part of the Rockies.
The Sierra Nevada, located to the west of Nevada, is actually a different mountain range that includes famous peaks like Mount Whitney, which is the highest point in the contiguous United States. The Ruby Mountains, on the other hand, are located in northeast Nevada and are known for their stunning scenery but are not part of the Rocky Mountain range.